Reported by SPC today.
No stronger detection stands among the 22 recorded within 20 km of this point since 7 April 2026 — 4 others scored the same. Another comparable one was recorded here earlier the same day.
What the source measured
SPC reported: Wind 80 kt near 1 S Warm Springs, Deer Lodge, MT. (MSO)
An estimated 34,190 people live within 50 km of this point.
Nearby, since 7 April 2026
- September 2, 2026 · score 40 · 0.0 km
- July 24, 2026 · score 34 · 14.5 km
How we know
Confirmed by 2 independent sources, including SPC.
Our own score for this event is 40 out of 100, at 90 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Computed under scoring rules v4. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Severe Weather |
| Severity | High |
| Calamity Score (ours) | 40 / 100 |
| Our confidence | 90% |
| Coordinates | 46.1600, -112.7800 |
| Nearest City | Butte (26 km) |
| Population Exposed | 34.2K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-09-02T19:30:00.000Z |
| Source | https://www.spc.noaa.gov/climo/reports/today.html |
Score Breakdown
Technical Details
| ReportType | wind |
| Speed | 80 |
| Location | 1 S Warm Springs |
| County | Deer Lodge |
| State | MT |
| Comments | (MSO) |
| Iem TypeSummary | G |
| Iem Magnitude | 60 |
| Iem Unit | MPH |
| Iem City | 5 SSE Finn |
| Iem County | Powell |
| Iem State | MT |
| Iem Wfo | MSO |
| Iem Remark | Avon North MDT sensor also reported 48 mph sustained wind. |
| MergedSources | [{"id":"iem_G_46.160_-112.780_1788377400000","source":"iem","severity":"low","severityValue":25,"timestamp":1788377400000,"latitude":46.16,"longitude":-112.78},{"id":"iem_G_46.700_-112.660_1788379200000","source":"iem","severity":"low","severityValue":25,"timestamp":1788379200000,"latitude":46.7,"longitude":-112.66}] |
Safety Information
Always follow official guidance from your local emergency management agency. This platform provides scientific monitoring data and is not a substitute for official warnings. If you are in immediate danger, contact your local emergency number.
Series begins 8 March 2026. Comparisons refer to that period only. Collection gap: 14-26 August 2026.
This data is aggregated algorithmically from scientific sources. Not a replacement for official emergency warnings.
Want to know when something happens near Butte?
Calamity.live data shows a weather event with CalamityScore 40/100, near Butte (United States), based on data from spc. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.